5. EMER ELEC PWR

Question 1

EMER GEN TEST

Answer 1

Pressed and held:

If AC NORMAL BUSES are supplied:

• The EMER GEN is driven hydraulically if the blue electric pump is running. The AC ESS BUS and the DC ESS BUS are connected to the emergency generator. (The DC ESS SHED and AC ESS SHED buses are not powered.)
  ECAM displays the ELEC page automatically (only on the ground).

If only the batteries supply the aircraft:
- The static inverter powers the AC ESS BUS.

Question 2

GEN 1 LINE

Answer 2

On (lights out):

Electrical system operates normally.

OFF Light:

When pressed the OFF light comes on white. GEN 1 line contactor opens. The AC BUS 1 channel is supplied from GEN 2 through bus tie contactors. A fuel pump in each wing remains supplied by GEN 1. This pushbutton is typically pressed during avionics smoke procedure.

SMOKE Light:

Comes on amber, along with a warning on ECAM, when smoke is detected in the avionics ventilation duct. The light remains illuminated as long smoke is being detected in the avionics compartment.

Question 3

RAT
&
EMER GEN

Answer 3

FAULT Light:

This light comes on red if the emergency generator is not supplying power and AC BUS 1 and AC BUS 2 are not powered.

Question 4

MAN ON

Answer 4

When the following conditions are met the RAT deploys automatically:

AC BUS 1 is not electrically supplied
AC BUS 2 is not electrically supplied
Aircraft speed is greater than 100 knots
After the RAT extends:

The blue hydraulic system drives the emergency generator.
As soon as the emergency generator electrical parameters are within tolerance the emergency generator is connected to the aircraft network.
Pressed:

This selects manual RAT extension. Emergency generator coupling occurs 3 seconds after the RAT is supplying the emergency generator.